River Stone DiamondsPrivate Consultation

The River Stone collection

A more discerning
standard for diamonds.

We personally review the details that matter: grade, proportions, media, growth method and availability, before a stone enters this collection.

A considered selection of CVD and HPHT lab-grown diamonds, including fancy colors, with final availability and order details confirmed before any order is finalized.

Search a certificate number from any diamond listing. We’ll open the matching River Stone page when it is currently available.

Explore our guides: loose IGI-certified diamonds · IGI certificate lookup · fancy-color diamonds · colored-diamond pricing.

Looking for several stones? Ask the Diamond Concierge for different shapes and carat weights in one request—for example, a 1.5 ct round, a 2 ct pear and a 3 ct emerald. Available matches appear together on one results page.

Shape
Choose one or more shapesEach shape enters the collection only after passing its own screening standard.
All shapes
Antique & specialty shapesExplore distinctive outlines that are currently available in the collection.
25 available shapes

Personally screened selection

Find the one that feels inevitable.

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RSD screened color
D-FEvery stone shown meets this color screen.
RSD screened clarity
VS2 or better for fancy colorColorless stones remain IF / VVS1 / VVS2 / VS1.
Reset search

Screened collection

Explore selected diamonds

Showing all 5,088 matching diamonds.

Refine the viewReturn to RSD SelectionShow considered shortlist

How RSD Selection worksWe begin with a curated shortlist. Every diamond shown passes our IGI, media, availability, growth-method and finish screens. Colorless stones stay within our stricter fluorescence screen; fancy-color stones retain the fluorescence grade reported on the certificate, including when it is not reported. RSD Selection places the strongest screened profiles first; it is a considered starting point—not a claim that one diamond is universally best.

1.55 carat Cushion lab-grown diamond, IGI report LG844612187

RSD Selection Shown first for its screened grade profile

IGI report LG844612187

RSD-0D611E532F19

1.55 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$399$257/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612187
1.54 carat Cushion lab-grown diamond, IGI report LG817698672

IGI report LG817698672

RSD-1107FB23A906

1.54 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$259/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG817698672
1.53 carat Cushion lab-grown diamond, IGI report LG843675104

IGI report LG843675104

RSD-E61B8CA70A01

1.53 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$399$261/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675104
1.52 carat Cushion lab-grown diamond, IGI report LG843675106

IGI report LG843675106

RSD-53E4EAFC9A66

1.52 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$263/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675106
1.51 carat Cushion lab-grown diamond, IGI report LG843675233

IGI report LG843675233

RSD-A3A0A65C2AE0

1.51 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$399$264/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675233
1.51 carat Cushion lab-grown diamond, IGI report LG843675102

IGI report LG843675102

RSD-7A4101B10A90

1.51 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$264/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675102
1.5 carat Cushion lab-grown diamond, IGI report LG843675232

IGI report LG843675232

RSD-AA9ABFF1E415

1.50 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$349$233/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675232
1.5 carat Cushion lab-grown diamond, IGI report LG843638900

IGI report LG843638900

RSD-16EB3655AF26

1.50 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$349$233/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843638900
1.46 carat Cushion lab-grown diamond, IGI report LG812643942

IGI report LG812643942

RSD-5E4C3A9C3045

1.46 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$349$239/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG812643942
1.45 carat Cushion lab-grown diamond, IGI report LG844612204

IGI report LG844612204

RSD-FC644BE58AF2

1.45 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$349$241/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612204
1.45 carat Cushion lab-grown diamond, IGI report LG844633500

IGI report LG844633500

RSD-6B290E56B661

1.45 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$349$241/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844633500
1.44 carat Cushion lab-grown diamond, IGI report LG844612524

IGI report LG844612524

RSD-A829E32DF343

1.44 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$349$242/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612524
1.43 carat Cushion lab-grown diamond, IGI report LG842634804

IGI report LG842634804

RSD-1204F28F7A1C

1.43 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$279/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG842634804
1.42 carat Cushion lab-grown diamond, IGI report LG844612203

IGI report LG844612203

RSD-52F8687099AB

1.42 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$349$246/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612203
1.33 carat Cushion lab-grown diamond, IGI report LG844612192

IGI report LG844612192

RSD-E572CED08520

1.33 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$300/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612192
1.31 carat Cushion lab-grown diamond, IGI report LG842634803

IGI report LG842634803

RSD-4D4348A43A76

1.31 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$399$305/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG842634803
1.29 carat Cushion lab-grown diamond, IGI report LG844612620

IGI report LG844612620

RSD-A613F07B08A6

1.29 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$349$271/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612620
1.11 carat Cushion lab-grown diamond, IGI report LG843675111

IGI report LG843675111

RSD-BE2F5B166F8B

1.11 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$349$314/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675111
1.09 carat Cushion lab-grown diamond, IGI report LG839624881

IGI report LG839624881

RSD-B70DFDD0F4B8

1.09 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$299$274/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG839624881
1.09 carat Cushion lab-grown diamond, IGI report LG843675094

IGI report LG843675094

RSD-A206E6115C71

1.09 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$299$274/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675094
1.08 carat Cushion lab-grown diamond, IGI report LG844612148

IGI report LG844612148

RSD-2C92FE9E5B06

1.08 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$299$277/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612148
1.08 carat Cushion lab-grown diamond, IGI report LG843675203

IGI report LG843675203

RSD-980627769B9F

1.08 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$299$277/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675203
1.07 carat Cushion lab-grown diamond, IGI report LG844612433

IGI report LG844612433

RSD-2B16E8C789D8

1.07 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$299$279/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612433
1.07 carat Cushion lab-grown diamond, IGI report LG843674948

IGI report LG843674948

RSD-450FC2E355FE

1.07 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$299$279/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843674948
1.06 carat Cushion lab-grown diamond, IGI report LG837678259

IGI report LG837678259

RSD-17F77866E8B4

1.06 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$299$282/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG837678259
1.06 carat Cushion lab-grown diamond, IGI report LG843674950

IGI report LG843674950

RSD-722141975052

1.06 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$299$282/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843674950
1.06 carat Cushion lab-grown diamond, IGI report LG844622963

IGI report LG844622963

RSD-87FB24DA7382

1.06 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$299$282/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844622963
1.05 carat Cushion lab-grown diamond, IGI report LG844612715

IGI report LG844612715

RSD-14F88E4AD223

1.05 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$299$285/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844612715
1.05 carat Cushion lab-grown diamond, IGI report LG843675095

IGI report LG843675095

RSD-BDCA9501F9E3

1.05 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score98/100Evidence complete
$299$285/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG843675095
1.04 carat Cushion lab-grown diamond, IGI report LG844610775

IGI report LG844610775

RSD-9E6B317B5A09

1.04 ct Cushion

D colorVS1 clarityIGICVD

RSD Selection Score90/100Evidence complete
$299$288/ctCurrent price. No artificial markdowns.Availability confirmed before any order.
Preview IGI report LG844610775

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